49457531 has 2 divisors, whose sum is σ = 49457532. Its totient is φ = 49457530.

The previous prime is 49457509. The next prime is 49457537. The reversal of 49457531 is 13575494.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49457531 - 2⁶ = 49457467 is a prime.

It is a super-2 number, since 2×49457531² = 4892094745231922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49457537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24728765 + 24728766.

It is an arithmetic number, because the mean of its divisors is an integer number (24728766).

Almost surely, 2^49457531 is an apocalyptic number.

49457531 is a deficient number, since it is larger than the sum of its proper divisors (1).

49457531 is an equidigital number, since it uses as much as digits as its factorization.

49457531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 49457531 is about 7032.6048516890. The cubic root of 49457531 is about 367.0659870903.

The spelling of 49457531 in words is "forty-nine million, four hundred fifty-seven thousand, five hundred thirty-one".